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In this video I will find the solution, u(x,y)=f(p)=?, to the 1st order differential equation, with 2 partial derivatives, x(partial(u)/partial(x))-2y(partial(u)/partial(y))=0, assuming p=constant.
Next video in this series can be seen at:
https://youtu.be/NxQT5g_RtMQ